Quarter	US dollars
2004-12-31	40
2005-03-31	100
2005-06-30	91
2005-09-30	124
2005-12-31	142
2006-03-31	324
2006-06-30	412
2006-09-30	540
2006-12-31	560
2007-03-31	604
2007-06-30	1270
2007-09-30	943
2007-12-31	942
2008-03-31	610
2008-06-30	468
2008-09-30	371
2008-12-31	404
2009-03-31	580
2009-06-30	627
2009-09-30	633
2009-12-31	707
2010-03-31	622
2010-06-30	715
2010-09-30	592
2010-12-31	901
2011-03-31	964
2011-06-30	848
2011-09-30	3005
2011-12-31	3330
2012-03-31	4109
2012-06-30	3365
2012-09-30	3288
2012-12-31	3935
2013-03-31	5713
2013-06-30	6240
2013-09-30	5772
2013-12-31	5287
2014-03-31	4623
2014-06-30	4197
2014-09-30	4037
2014-12-31	3754
2015-03-31	3456
2015-06-30	3221
2015-09-30	3082
2015-12-31	2990
2016-03-31	3018
2016-06-30	2742
2016-09-30	2684
2016-12-31	2279
2017-03-31	2182
2017-06-30	1938
2017-09-30	1775
2017-12-31	1789
2018-03-31	1396
2018-06-30	1277
2018-09-30	494
2018-12-31	1053
2019-03-31	1108
2019-06-30	1023
2019-09-30	983
2019-12-31	896
2020-03-31	855
2020-06-30	873
2020-09-30	897
2020-12-31	875
2021-03-31	842
2021-06-30	916
2021-09-30	1091
2021-12-31	1160
2022-03-31	1210
2022-06-30	1206
2022-09-30	1294
2022-12-31	1405
2023-03-31	1623
2023-06-30	1317
2023-09-30	1294